Welding helmet



FIG. 1 is a front elevational view of a welding helmet showing my newdesign;

FIG. 2 is a left side view thereof;

FIG. 3 is a right side view thereof;

FIG. 4 is a perspective view thereof;

FIG. 5 is another perspective view thereof;

FIG. 6 is another perspective view thereof; and,

FIG. 7 is another perspective view thereof.

All surfaces not shown form no part of the claimed design.

CLAIM The ornamental design for a welding helmet, as shown anddescribed.